blacken

verb

black·​en ˈbla-kən 

blackened; blackening

ˈblak-niŋ, 

ˈbla-kə- 

intransitive verb

: to become dark or black

the sky blackens

transitive verb

1

: to make black

2

: defame, sully

blackened her reputation

blackener

ˈblak-nər, 

ˈbla-kə- 

noun

Synonyms of blacken

• stain
• dirty
• besmirch
• sully

Examples of blacken in a Sentence

Fire had blackened the field.

The sky blackened as the storm approached.

Their false accusations failed to blacken my reputation.

a presidency blackened by scandal

Recent Examples on the Web

Inside, boards blackened by smoke and sweat, the air sweet with cane and forgetting. —Brittany Allen, Literary Hub, 19 May 2026

Sepsis had left his skin peeling and his body blackened, including parts of his fingers, ears, lips and lower legs. —Gina Kalsi, PEOPLE, 15 May 2026

Broil close to heat until blackened and blistered, 4 to 5 minutes per side. —Rick Bayless, Midwest Living, 13 May 2026

And one track prominently features a country singer, a drastic departure from the usual Fire-Toolz mélange of screensaver EDM, Hypercolor death metal, blackened new age, and copious other mutant genres that usually don’t mix. —Reed Jackson, SPIN, 8 May 2026

Word History

Etymology

Middle English blaknen, blakenen, from blak black entry 1 + -n, -en -en entry 2

First Known Use

14th century, in the meaning defined at intransitive sense

Rhymes for blacken

• bracken
• lakin
• slacken

Kids Definition

blacken

verb

black·​en ˈblak-ən 

blackened; blackening ˈblak-(ə-)niŋ 

1

: to make or become dark or black

2

: to hurt the reputation of

blackener

-(ə-)nər 

noun